JP4290201B2 - Paper feeding method and apparatus - Google Patents

Description

The present invention relates to a paper feeding method and a paper feeding device for continuously supplying a thick paperboard such as a cardboard sheet to a sheet processing machine such as a printing machine.

  Generally, many cardboard sheets manufactured by a corrugator are stacked with the front liner facing down. The stacked corrugated cardboard sheets are usually supplied to a sheet processing machine such as a printing machine or a crease grooving device and subjected to appropriate processing.

  Here, there are two types of printing machines as sheet processing machines: a type that prints on the upper surface side of a sheet and a type that prints on the lower surface side. These single-sided printing machines use a paperboard (hereinafter simply referred to as a sheet). In other words, after printing on one side of the sheet, it is necessary to stack the sheets, turn the stacked sheets upside down, and supply them to the printing machine.

  Further, when printing is performed on the front liner on the lower surface side of the stacked corrugated cardboard sheets using a single-sided printing machine of the upper surface printing type, it is necessary to turn the corrugated sheets upside down and supply them to the printing machine.

  Here, Patent Document 1 discloses a sheet feeding device that can send a large number of stacked sheets with the upper surface in the stacked state as it is, or can be sent upside down. is suggesting.

  In the sheet feeding device, a tilting table that can swing about a horizontal axis is held in a horizontal state, and a swivel base is provided on the upper surface, and the feed conveyor is supported by the swivel base. A pair of sheet receiving devices are provided at both ends of the sheet so as to be freely raised and lowered, and the stacked sheet is fed onto one of the horizontal sheet receiving devices disposed below, with the tilting table being substantially vertical. When supported by one sheet receiver, the tilting table is tilted until the feeding conveyor is leveled.

  And when the stacked sheets are sent with the upper surface in the stacked state upside down, the other sheet receiving device arranged on the downstream side in the sheet conveying direction is laid down, the stacked sheets are laid down on the downstream side, The sheet is fed out by driving the feeding conveyor and the other sheet receiving apparatus that is turned over.

  In addition, when the stacked sheets are sent with the upper surface in the stacked state as it is, after the feeding conveyor is made horizontal by the swinging of the tilting table, the swivel table is rotated 180 ° around the vertical axis. One sheet receiving device is disposed on the downstream side, the one sheet receiving device is laid down, and the sheet is fed out by driving the feeding conveyor and the one sheet receiving device laid down.

Japanese Patent Publication No. 7-76063

  By the way, in the paper feeding device described in Patent Document 1, a swivel base is provided on the upper surface side of the tilting table in a horizontal state, and the feed conveyor and the pair of sheet receiving devices are supported by the swivel base. When the paper device is enlarged and the stacked sheets are fed with the top surface in the stacked state as it is, it is necessary to rotate the extremely heavy swivel, so a large rotation drive device that swivels the swivel is used. There is an inconvenience that it must be used.

  In addition, since the stacked sheets sent to the sheet receiving device are supported by an underlay such as a plywood board and are sent to the sheet receiving device together with the underlay, when the stacked sheets are sent with the upper surface in the stacked state as it is, After turning, after removing the underlay, it is necessary to lay down one of the sheet receiving apparatuses, or to remove the underlay after the sheet receiving apparatus is overturned.

An object of the present invention is to provide a simple configuration in which a large number of stacked sheets can be sent out with the upper surface in the stacked state as it is, or can be sent upside down. It is another object of the present invention to provide a sheet feeding method and an apparatus for easily removing an underlay.

In order to solve the above problems, Oite the paper feeding method according to this invention, along the slope of the upward gradient toward a stacking sheet to the downstream side by a sheet feeding device which is inclined with ascending slope toward the downstream side The sheet is lifted upward and a separator device arranged at the unloading end of the sheet feeding device lifts several sheets from the leading sheet onto the sheet conveying surface and divides the sheet into blocks of sheets. Sheets divided into blocks by operation and swinging upward of a sheet block feeding device provided on the downstream side of the unloading end of the sheet feeding device and swingable about the unloading end located on the downstream side and scooped block, substantially horizontal so that its end was located a sheet blocks divided into blocks downward is disposed downstream Or discharged to a state in the next step, or, by oscillating the seat block feeding device scooped sheet block until the state of the substantially vertical end thereof upstream which is located a seat block downward In this way, a configuration is adopted in which the operation of discharging to the next process in a state of being overlaid and inverted so as to be sequentially arranged is repeated.

As in the paper feeding method having the above-described configuration, the sheet block feeding device is supported so as to be swingable around the carry-out end located on the downstream side thereof, so that the sheet block feeding device can be swung upward. The sheet block divided by the movement is discharged to the next process in a state where it is tilted substantially horizontally so that the end portion located at the lower side is arranged on the downstream side, or the sheet block divided into blocks is It is possible to smoothly and efficiently perform the operation of discharging to the next process in a state of being overlaid and inverted so that the end portion located below is disposed on the upstream side.

Here, when the seat block delivery device swings upward, the seat block support member is moved in a direction extending from the carry-in end of the seat block delivery device to the upstream side to support the upstream end of the seat block. Thus, the sheet block feeding device and the sheet block support member can stably and reliably support the sheet block in a state in which the upper surface in the stacked state faces upward.

In addition , when the seat block is tilted down and inverted toward the downstream side, the downstream end surface of the seat block is supported by the sheet block receiving member that protrudes on the conveying surface of the sheet block feeding device, and the seat block is tilted down. By reversing, the seat block can be reliably laid down and reversed by swinging the sheet block feeding device.

In the sheet feeding device according to the present invention, the sheet feeding device that feeds the stacked sheets obliquely upward in an upwardly inclined shape toward the downstream side, and the stacked sheets fed by the sheet feeding device from the leading sheet A separator device that lifts several sheets and blocks the upper end portion of the sheet tilting toward the upstream side, and a downstream carry-out end portion so that the carry-in end portion that faces the carry-out end of the sheet feeding device moves up and down. A sheet block feeding device supported in a swingable manner around the sheet block, and the sheet blocks divided by the separator device are scooped up by swinging upward until the sheet block feeding device becomes substantially horizontal. Raise the upper end of the seat block so that it falls down to the upstream side, and stack with this sheet block feeding device In the substantially horizontal state that supports the lower surface in the state, it is sent out to the downstream side, or the upper end of the substantially horizontal state is tilted down and inverted so that the upper end part falls down to the downstream side by swinging in the same direction A configuration that discharges to the downstream side is adopted.

By configuring as above, a product seen superimposed sheets very automatically a smooth state, the upper surface in the stacked state can be fed as it is, or be fed upside down Can do.

  In addition, since the stacked sheets are sent out in order from the upper sheet, the underlay such as a plywood plate that supports the stacked sheets is left in the paper feeding device after all sheets are sent out, and the underlay can be easily taken out. it can.

  Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, a stacked sheet S in which a large number of sheets s are stacked is supported by an underlay A and conveyed downstream by a roller conveyor 1.

  A tilting table 2 is provided on the downstream side of the roller conveyor 1. The tilting table 2 is supported so as to be swingable up and down around a horizontal shaft 4 (shown in FIG. 1) supported by the side frame 3a of the machine base 3 shown in FIG. The operation of the moving cylinder 5 causes the sheet receiving position in a state of being substantially vertical as shown by the chain line a in FIG. 1 and receiving the stacked sheets S, and the upper end to fall downstream as shown by the solid line in FIG. The sheet is oscillated between the sheet feeding position and the sheet feeding position where the sheet is sequentially fed from the upper part of the stacked sheets S.

  The tilting table 2 has a pair of rail members 6 on both sides, and a sheet feeding device 10 is provided between the pair of rail members 6. The sheet feeding apparatus 10 includes two rows of belt conveyors 10a. The belt conveyors 10a in each row are supported by the tilting table 2 so that the sheet conveying surface of the carrier side belt is in a substantially vertical state at the sheet receiving position of the tilting table 2, and are driven by a motor (not shown) as indicated by the arrow in FIG. It is moved in the direction indicated by.

  Here, the carrier side belts of the belt conveyors 10a in each row are supported by the belt guide plate 11 shown in FIG. As shown in FIG. 3, a pair of support pieces 12 extending forward from the carry-out end of the sheet feeding device 10 are provided on both sides of the upper end of the belt guide plate 11.

  As shown in FIGS. 1 and 2, a support member 20 is provided between the pair of rail members 6 of the tilting table 2. The support member 20 is configured such that a plurality of strip-shaped plate bodies 22 are provided in a comb-like shape on a bar member 21 having a length extending between a pair of rail members 6 of the tilting table 2, and both end portions of the bar member 21 are The rail member 6 is slidably supported.

  The plurality of plates 22 of the support member 20 are in a substantially horizontal state at the sheet receiving position of the tilting table 2, and receive the stacked sheets S fed from the roller conveyor 1 while being arranged at the carry-in end of the sheet feeding device 10. It comes to support. After the stacked sheet S is received, when the tilting table 2 is swung and held at the sheet feeding position, the stacked sheet S is supported by the tilting table 2 and the sheet feeding device 10. .

  Further, the support member 20 moves with the movement of the carrier side belt of the belt conveyor 10a in the sheet feeding device 10 and moves intermittently with a constant stroke in the same direction as the carrier side belt. .

  As shown in FIGS. 3 and 5, at the sheet feeding position of the tilting table 2, the sheet feeding device 10 is fed forward from the carrying-out end of the sheet feeding device 10 to support the belt guide plate 11. A separator device 30 is provided that lifts a bundle of several sheets s from the top sheet s of the upper layer portion of the stacked sheet S supported by the pieces 12 onto the support piece 12 and divides the blocks into blocks.

  As shown in FIG. 8, the separator device 30 includes a lifting cylinder 32 supported by a support bar 31 between a pair of side frames 3 a of the machine base 3, and a bracket that is moved up and down in a substantially vertical direction by the cylinder 32. 34 and a sheet support plate 33 whose downstream end is supported so as to be swingable in the vertical direction around a pin 35 passed between a pair of side plates 34a facing each other on both sides of the bracket 34, and divided into blocks. The upper block support surface 33a having a length capable of supporting at least the lower ends of several sheets s is in the same direction as the support piece 12 of the belt guide plate 11 that is inclined upward toward the downstream side at the sheet feeding position. Between the first inclination angle position P1 inclined at the same inclination and the second inclination angle position P2 where the inclination angle of the upward inclination becomes steeper than that. And a swinging cylinder 36 supported by the bracket 34 so as to swing up and down. The lift cylinder 32 causes the seat support plate 33 in the state of the first inclination angle position P1 to be below the support piece 12. The plurality of sheets s are lifted from the top of the stacked sheets S supported by the support pieces 12 by being raised in the substantially vertical direction from the standby position, and are divided into blocks in a bundle shape.

  Here, an upstream end of the block support surface 33a of the sheet support plate 33 is provided with a prevention claw 33b for preventing the sheet block B divided into blocks from slipping down. Further, as shown in FIG. 5, the lower end portion of the sheet block B divided by the upward movement of the sheet support plate 33 in the substantially vertical direction is downstream from the lower end portion of the next sheet s remaining on the support piece 12. Separately, a gap is formed between these lower ends.

  As shown in FIGS. 3 and 6, in a state where the tilting table 2 is at the sheet feeding position in which the tilting table 2 is inclined upward toward the downstream side, the sheet block feeding unit is disposed downstream of the unloading end of the sheet feeding device 10. A device 40 is provided.

  The sheet block feeding device 40 includes two rows of belt conveyors 41, and each belt conveyor 41 rotatably supports a head pulley 43 and a tail pulley 44 by a pair of conveyor frames 42, and a belt between the pulleys 43, 44. 45, and the carrier side belt of the belt 45 is supported by the belt support plate 46.

  The pulley shaft 47 of the head pulley 43 of each belt conveyor 41 is common, the pulley shaft 47 is rotatably supported by a bearing 48, and a driving motor 49 of the belt conveyor 41 is connected to the shaft end of the pulley shaft 47. Has been. Further, the belt conveyor 41 is swingable in the direction in which the upstream carry-in end portion moves up and down around the pulley shaft 47.

  Each belt conveyor 41 is extended to the conveying surface of the sheet feeding device 10 which is at the sheet feeding position and has an upward slope toward the downstream side with the pulley shaft 47 on the downstream side as a center by the swing driving device 50. The carry-in end portion is swung from the inclined standby position in a direction to move upward from the conveying surface.

  As shown in FIGS. 4 and 5, the oscillating driving device 50 fixes a gear 51 arranged coaxially with the pulley shaft 47 on the outer surface of the conveyor frame 42, and includes a driving gear 52 that meshes with each gear 51. The drive shaft 53 is fixed to a parallel drive shaft 53 provided below the pulley shaft 47, the drive shaft 53 is driven by a motor 54, and the rotation of the drive shaft 53 is transmitted from the drive gear 52 to the gear 51. The structure is such that the upstream side of the conveyor frame 42 is swung up and down around 47.

  Here, when each belt conveyor 41 swings from the standby position above the conveying surface of the sheet feeding device 10 to a substantially horizontal state by the swing driving device 50, each belt conveyor 41 is The sheet block B divided into blocks by the separator device 30 is picked up and received and supported, and the raised sheet block B is laid down so that the upper end of the sheet block B falls to the upstream side. The formed surface is supported by the belt conveyor 41.

  As shown in FIGS. 3 and 7, a plate-like sheet block support member 60 that supports the upstream end of the sheet block B supported by the belt conveyor 41 is provided on the outer side of each belt conveyor 41. Yes.

  As shown in FIGS. 10 and 11, the seat block support member 60 includes a linear rail 61 slidably supported by a slide guide 64 on an upper side of a support plate 63 provided on the upper side of a swing plate 62. By the support by the linear rail 61, the seat block delivery device 40 is movable in the direction extending from the carry-in end to the upstream side, and is moved by the cylinder 65 supported by the support plate 63. ing.

  The swing plate 62 is supported so as to swing up and down about a shaft 66 provided at the upstream end portion of the conveyor frame 42, and the swing side of the engagement plate 67 fixed to the swing side end portion. A pair of engagement pieces 67a and 67b are provided at the end, and a pin 68 fixed to the side surface of the conveyor frame 42 is disposed between the pair of engagement pieces 67a and 67b.

  The swing plate 62 is swingable in the vertical direction within a range in which the pair of engagement pieces 67a and 67b abuts on the pins 68, and the standby state in which the seat block support member 60 is disposed outside the conveyor frame 42. Then, the seat block support member 60 swings in the direction in which the downstream end moves downward due to its own weight, and the upper engagement piece 67a is engaged with the pin 68. The seat block support member 60 is held in a substantially horizontal state.

  Further, in a state where the seat block support member 60 moves in the direction extending upstream from the carry-in end of the seat block delivery device 40 and supports the seat block B, the seat block support member 60 is upstream due to the weight of the seat block B. The side end portion swings in the downward movement direction, and the lower engagement piece 67b is engaged with the pin 68. By the engagement, the seat block support member 60 is located upstream of the upper surface. The side end portion is held on substantially the same plane as the conveyance surface of the sheet block delivery device 40.

  A roller 69 is rotatably supported at the upstream end of the seat block support member 60, and the outer peripheral upper portion of the roller 69 is disposed on the same plane as the upper surface of the seat block support member 60, so When receiving the side end, the lowermost sheet s is not damaged.

  As shown in FIG. 5, a plate-shaped sheet block receiving member 70 is provided between the carry-out end portions of the pair of belt conveyors 41. The sheet block receiving member 70 is moved from a standby position located below the conveying surface of the belt conveyor 41 toward a state of standing on the conveying surface by the following configuration.

  That is, as shown in FIG. 9, a rail 71 extending in the delivery direction of the seat block B is attached to the side surface of the conveyor frame 42, and the seat block is attached to the downstream end of the slide block 72 movable along the rail 71. A fulcrum shaft 73 that supports the upstream end portion of the receiving member 70 so as to be swingable in the upstream and downstream directions is supported, and the seat block receiving member 70 can swing in the vertical direction around the pulley shaft 47. The tip of the arm 74 is rotatably connected, and the upstream side of the arm 74 is swung up and down around the pulley shaft 47 by the cylinder 75 supported by the conveyor frame 42, and the slide block 72 is moved along the rail 71. As a result, the downstream end of the seat block receiving member 70 is swung upwardly about the fulcrum shaft 73 while being moved downstream. It is the UNA configuration.

  As shown in FIGS. 1 and 2, on the downstream side of the tilting table 2 in a state where the sheet is fed out, the sheet block B sent from the sheet block sending device 40 is received and arranged downstream. A feed conveyor 80 is provided to feed the sheet processing machine. On the conveying surface of the feed conveyor 80, there is provided a gate plate 82 which forms a gate 81 through which several sheets s can pass between the conveying surface and the sheet block B is wrapped by the gate plate 82. The feed posture is changed to the state.

  A sheet block delivery device 90 that delivers the sheet block B from the sheet block delivery device 40 to the feed conveyor 80 is provided on the conveyance surface of the feed conveyor 80.

  12 to 14 show the details of the sheet block transfer device 90, which are configured as follows. That is, the seat block delivery device 90 includes a lift 92 that is supported by a fixed support frame 91 so as to be lifted and lowered, a lift drive device 93 that moves the lift 92 up and down, and a seat block delivery device 40 that includes the lift 92. And a reciprocating device 95 for reciprocating the transfer member 94.

  The support frame 91 has four guide shafts 96 on both sides, and supports the lifting platform 92 along the guide shafts 96 so as to be movable up and down. The lifting platform 92 has a pair of side plates 92a on both sides, and rotatably supports a plurality of guide rollers 97 that movably support the transfer member 94 on the opposing inner surface of the side plates 92a.

  The elevating drive device 93 is provided with a pair of sprockets 93a and 93b on the upper and lower sides, a part of a chain 93c spanned between the sprockets 93a and 93b is connected to the elevating platform 92, and the elevating platform 92 is moved by moving the chain 93c. A certain stroke is moved up and down.

  The delivery member 94 has a pair of guide bars 94a supported by a plurality of guide rollers 97 so as to be slidable in the horizontal direction on both sides, and a plurality of receiving rollers 94b between the upstream end portions of the pair of guide bars 94a. Is provided on the downstream side of the receiving roller 94b, and a guide plate 94c that rises vertically on the conveying surface of the receiving roller 94b is provided.

  Here, in the delivery member 94, a position where the most advanced receiving roller 94b is arranged upstream from the carry-out end of the sheet block feeding device 40 is set as a forward stop position, and the receiving roller 94b is a sheet block of the gate plate 82. The position where the guide surface is sunk downstream is set as the reverse stop position.

  Further, the transfer member 94 that is moved up and down by the raising and lowering movement of the lifting platform 92 is disposed slightly below the conveying surface of the belt conveyor 41 in a state where the conveying surface of the receiving roller 94 b is substantially horizontal of the sheet block feeding device 40. The position is set as a descent stop position, and the upper end of the seat block B is swung in the same direction after the seat block B is swung up by swinging in the direction in which the upstream end of the belt conveyor 41 moves upward. The position where the most advanced receiving roller 94b receives the sheet block B when the part is tilted downstream is set as the ascending stop position.

  The reciprocating device 95 fixes a rack 95a to each inner side surface of the pair of guide bars 94a of the delivery member 94, and each rack 95a meshes with a pinion 95b rotatably supported by a lifting platform 92, and the pinion 95b is rotated by a motor 95c supported by a lifting platform 92.

  The sheet feeding device shown in the embodiment has the above-described structure. When feeding a sheet processing machine, first, the tilting table 2 is set to receive the stacked sheets S, and the support member 20 is placed at the lower end of the sheet feeding device 10. After the horizontal state, the stacked sheets S are supplied onto the support member 20.

  After supplying the stacked sheets S, the swinging cylinder 5 is operated to swing the tilting table 2, and the posture is changed to the sheet feeding position where the upper surface tilts downstream. By changing the posture of the tilting table 2, the stacked sheets S are brought into a state in which the upper surface falls down on the downstream side, and the stacked sheets S are supported by the plate body 22 of the support member 20 and the two rows of belt conveyors 10 a of the sheet feeding device 10. .

  As described above, after changing the posture of the tilting table 2 to the sheet feeding state, the sheet feeding device 10 and the support member 20 are driven, and the leading sheet s of the stacked sheets S is located above the sheet support plate 33 of the separator device 30. The stacked sheet S is moved upward along the upward gradient to the position where it is disposed, and after that movement, the sheet feeding device 10 and the support member 20 are stopped.

  After the movement of the stacked sheets S is stopped, when the sheet support plate 33 that is inclined upward toward the downstream side is moved upward by the operation of the lifting cylinder 32 of the separator device 30, several sheets s from the beginning are moved. Are lifted by the sheet support plate 33 and divided into bundle blocks.

  At this time, since the sheet support plate 33 in the inclined state is moved in a substantially vertical direction with respect to the stacked sheets S held in the inclined state, the lower end portion of the sheet block B divided into blocks is the lower end of the next sheet s. The upper part of the seat block B is lifted while being in contact with the upper part of the front side of the next sheet s, and the upper end part is inclined to the upstream side. Become a block.

  For this reason, the next sheet s is not pulled up by contact with the sheet block B which is divided into blocks and lifted, and only a predetermined number of sheets s are reliably lifted, as shown in FIG. It will be divided into blocks.

  After dividing the seat block B into blocks, the swing cylinder 36 shown in FIG. 8 is operated to swing the seat support plate 33 to the second tilt angle position P2. As a result, the seat block B is substantially orthogonal to the seat support plate 33 as shown in FIG.

  Here, when the sheets s are stacked and sent in a state where the upper surface facing upward is turned upside down and turned downward, the operation of the cylinder 75 shown in FIG. The upstream side is swung upward, the downstream end of the seat block receiving member 70 is swung upward, and as shown in FIG. 5, the belt block 41 is erected on the conveying surface. . Then, by driving the motor 54 shown in FIG. 7, the conveyor frame 42 of the belt conveyor 41 is swung around the pulley shaft 47 in the direction in which the end on the upstream side moves upward. The illustrated cylinder 65 is operated to move the seat block support member 60 in a direction extending from the carry-in end of the seat block delivery device 40 to the upstream side.

  The sheet block B supported by the sheet support plate 33 of the separator device 30 by the upward swing of the belt conveyor 41 is scooped up by the belt conveyor 41 so that the upper end of the sheet block B falls down to the upstream side. The downstream end is supported by the belt conveyor 41, and the upstream end is supported by the seat block support member 60.

  At this time, since the belt conveyor 41 is in a driving state, the sheet block B is conveyed toward the carry-out end portion of the belt conveyor 41, and the downstream end face is supported by the sheet block receiving member 70 as shown in FIG. The When the belt conveyor 41 swings to a substantially vertical state as shown in FIG. 16, the upper end of the sheet block B begins to lie down on the downstream side.

  At this time, the lifting platform 92 of the seat block delivery device 90 is held at the lift stop position, and the delivery member 94 is held at the forward stop position moved to the upstream side.

  For this reason, the sheet block B that begins to fall down is supported by the receiving roller 94b on the upstream side of the transfer member 94, and when the transfer member 94 is moved backward by the rotation of the pinion 95b shown in FIG. As shown in FIG. 17, the upper end part is laid down so as to fall down on the downstream side.

  When the transfer member 94 is retracted to a position where it is sunk downstream from the sheet block guide surface of the gate plate 82, the sheet block B falls while the front end surface is guided by the gate plate 82, so Is supplied onto the sheet block B that has been fed first. The sheet block B supplied onto the feed conveyor 80 is sent to the sheet processing machine in order from the lower sheet s.

  Here, when the belt conveyor 41 of the sheet block feeding device 40 is swung in the direction of standing up with the sheet block B lifted, the sheet support plate 33 is first inclined by the operation of the rocking cylinder 36 shown in FIG. While returning to the angular position P1, the seat support plate 33 is lowered by the operation of the lifting cylinder 32 and returned to the standby position.

  Further, when the sheet block B is supplied from the belt conveyor 41 in a substantially standing state onto the feed conveyor 80 in a state where the sheet block B is in the stacked state and is directed downward, the motor 49 shown in FIG. As a result of the reverse rotation, the belt conveyor 41 is swung downward about the pulley shaft 47 and returned to the standby position.

  Further, when the sheet block B is supplied onto the carry-in end portion of the feed conveyor 80, the transfer member 94 is moved forward in the horizontal direction toward the upstream side and stopped and held in a state of receiving the next sheet block B.

  Thereafter, the stacked sheets S are conveyed to a position where the leading sheet s faces the sheet support plate 33 by the movement of the sheet feeding device 10 and the support member 20. Thereafter, by repeating the above operation, the sheet blocks B are successively fed onto the feed conveyor 80, and when the last sheet s is fed, the underlay A is left on the plate 22 of the support member 20. For this reason, the underlay A can be easily removed.

  In the embodiment, when the sheet block B is overturned by swinging the belt conveyor 41 to a substantially vertical state, the transfer member 94 of the sheet block transfer device 90 is held at the forward stop position, and is overlaid. When the starting seat block B is supported by the delivery member 94, the delivery member 94 is retracted downstream and the seat block B is laid down. However, such an operation may be omitted.

  In addition, the sheet block receiving member 70 supports the downstream end surface of the sheet block B conveyed toward the carry-out end portion of the belt conveyor 41 when the sheet block B is overturned and reversed. The seat block receiving member 70 may be omitted because the seat block B can be laid down and reversed by rapidly swinging 41 to the vertical position.

  On the other hand, when the sheet s is fed in a state where the sheet s is directed upward in the stacked state, as shown in FIG. 5, the head is moved by the upward movement of the sheet support plate 33 of the separator device 30. After the several sheets s are divided into blocks, the motor 54 shown in FIG. 7 is driven in a state where the sheet block receiving member 70 is held at a standby position located below the conveying surface of the sheet block feeding device 40. As a result, the end of the upstream side of the conveyor frame 42 of the belt conveyor 41 is swung around the pulley shaft 47, and the cylinder 65 shown in FIG. With this operation, the sheet block support member 60 is moved in the direction extending from the carry-in end of the sheet block delivery device 40 to the upstream side.

  The sheet block B supported by the sheet support plate 33 of the separator device 30 by the swinging of the belt conveyor 41 is scooped up by the two rows of belt conveyors 41 so that the upper end of the sheet block B falls down upstream. . The downstream end of the seat block B is supported by the belt conveyor 41 by the overturn, and the upstream end is supported by the seat block support member 60, and the end of the seat block B that is originally located below the end The part is placed on the downstream side.

  As shown in FIG. 19, when the sheet block feeding device 40 is in a substantially horizontal state, the motor 54 is stopped. Due to the stop, the sheet block B is conveyed toward the downstream side.

  At this time, the lifting platform 92 of the seat block delivery device 90 is held at the lowering stop position, and the delivery member 94 is held at the upstream forward stop position as shown in FIG.

  For this reason, when the sheet block B is sent out by the belt conveyor 41 of the sheet block sending device 40, the leading end of the sheet block B is supported by the plurality of receiving rollers 94 b of the delivery member 94.

  As shown by a chain line in FIG. 20, the transfer member 94 is downstream at the same speed as the sheet block delivery device 40 by the rotation of the pinion 95b shown in FIG. 12 with the leading end of the sheet block B being delivered to the contact position of the guide plate 94c. When retracted to the side, as shown in FIG. 20, the sheet block B is conveyed onto the carry-in end portion of the feed conveyor 80 by both the sheet block feeding device 40 and the delivery member 94.

  When the delivery member 94 is retracted from the seat block guide surface of the gate plate 82 to a position where it is sunk downstream, the seat block B has a surface that is directed upward when the leading end surface is guided by the gate plate 82 and stacked. The sheet is dropped in the state as it is, and is supplied onto the sheet block B previously fed onto the carry-in end portion of the feed conveyor 80. The sheet block B supplied onto the feed conveyor 80 is sent to the downstream sheet processing machine in order from the lower sheet s.

  Here, when the sheet block B is conveyed by the belt conveyor 41 of the sheet block sending device 40, the sheet support plate 33 is returned to the first inclination angle position P1 by the operation of the swing cylinder 36 shown in FIG. The seat support plate 33 is lowered by the operation of the lifting cylinder 32 and returned to the standby position.

  Further, when the sheet block B is supplied from the belt conveyor 41 onto the feed conveyor 80, the belt conveyor 41 swings around the pulley shaft 47 with its upstream side downwards by the reverse operation of the motor 49 shown in FIG. It is moved back to the standby position.

  Further, when the sheet block B is supplied onto the carry-in end portion of the feed conveyor 80, the transfer member 94 is moved forward in the horizontal direction toward the upstream side and stopped and held in a state of receiving the next sheet block B.

  Thereafter, the stacked sheets S are conveyed to a position where the leading sheet s faces the sheet support plate 33 by the movement of the sheet feeding device 10 and the support member 20. Thereafter, by repeating the above operation, the sheet blocks B are successively fed onto the feed conveyor 80, and when the last sheet s is fed, the underlay A is left on the plate 22 of the support member 20. For this reason, the underlay A can be easily removed.

  As described above, the separator device 30 lifts the stack of sheets S from the leading sheet s into blocks, and then swings the sheet block feeding device 40 upward and supports the sheet block. By moving the member 60 in a direction extending upstream from the carry-in end of the sheet block sending device 40, the upper surface of the sheet block B and the sheet block support member 60 with the sheet block B stacked is directed upward. Since the sheet block B can be supported with the end portion originally located below the sheet block B disposed on the downstream side, the sheet block feeding device 40 is swung to a position in a substantially horizontal state. Sending out block B or carrying of sheet block sending device 40 With the sheet block receiving member 70 protruding on the surface, the sheet block delivery device 40 is swung to a position that is substantially vertical, so that the end portion of the seat block B that is originally located at the lower side is the upstream side. The stacked sheets S are automatically discharged in a very smooth state by sending them upside down or upside down. Can be sent out.

  Further, by providing the separator device 30, the sheet block feeding device 40, the sheet block support member 60, and the sheet block receiving member 70 at the carry-out end portion of the sheet feeding device 10 supported by the tilting table 2, the stacked sheets S are Since the upper surface in the stacked state can be sent out as it is or can be sent upside down, a paper feeding method with a simple configuration can be obtained.

  As shown in the embodiment, by providing the sheet block transfer device 90 on the feed conveyor 80, the sheet block B can be supplied onto the carry-in end portion of the feed conveyor 80 without causing the sheet s to be disturbed. However, even if the sheet block delivery device 90 is omitted, the sheet block B can be reliably supplied onto the carry-in end portion of the feed conveyor 80, and therefore the sheet block delivery device 90 can be omitted.

  In the embodiment, the stacked sheet S fed by the sheet feeding device 10 by the separator device 30 is divided into blocks by lifting several sheets s from the leading sheet s onto the sheet conveying surface, but the sheet block feeding device. 40, the stacked sheet S can be divided into blocks by lifting several sheets s from the leading sheet s onto the sheet conveying surface by swinging upward, so that the separator device 30 is omitted, and the sheet block feeding device 40 may also be used as a separator device.

  Further, in the embodiment, the sheet block B divided by the upward swing of the sheet block feeding device 40 is scooped up so that the end portion located at the lower side is arranged on the downstream side in a substantially horizontal manner. At the same time, the sheet block B is laid down and inverted by swinging from the state where the downstream end thereof is supported by the sheet block receiving member 70 to the position where the sheet block feeding device 40 is substantially vertical. The sheet block B is fed into the sheet processing machine on the side, but the upper end portion of the sheet block B divided into blocks is pressed toward the downstream side, and the sheet block B is seated so that the end portion located below faces the upstream side. After lying down and inverted on the conveying surface of the block sending device 40, the horizontal state is maintained by the sheet block sending device 40 which is swung to a substantially horizontal state. It may be fed to the downstream side of the sheet processing machine Te. In this case, the seat block receiving member 70 can be omitted.

1 is a front view schematically showing a paper feeding device for carrying out a paper feeding method according to the present invention. Plan view of FIG. FIG. 2 is an enlarged plan view showing the sheet block delivery device of FIG. Sectional view along line IV-IV in FIG. Sectional drawing along the VV line of FIG. Sectional view along line VI-VI in FIG. Sectional view along line VII-VII in FIG. (A) is a longitudinal front view showing details of the separator device shown in FIG. 5, (B) is a right side view. Sectional drawing which shows the standby state of a seat block receiving member Sectional drawing which shows the standby state of a seat block support member Sectional view along line XI-XI in FIG. Longitudinal front view of sheet block delivery device Plan view of FIG. Sectional view along line XIV-XIV in FIG. Sectional view of the state in which the divided block is supported by the sheet block feeding device and the sheet block receiving member Sectional view with seat block raised Sectional view showing the state of seat block lying down Sectional view showing a state where the sheet block is turned over and inverted and fed onto the feed conveyor Sectional view of the state in which the divided block is supported by the sheet block feeding device and the sheet block support member Sectional view showing the delivery state of the seat block

S Stacked sheet 10 Sheet feeding device 30 Separator device 40 Sheet block feeding device 60 Sheet block support member 70 Sheet block receiving member

Claims (6)

An operation of feeding the stacked sheets upward along the slope of the upward gradient by the sheet feeding device inclined with an upward gradient toward the downstream side, and a separator disposed at the output end portion of the sheet feeding device The apparatus lifts several sheets from the leading sheet onto the sheet conveying surface and divides the sheet into sheet blocks made up of sheet bundles, and is provided downstream of the carry-out end of the sheet feeding apparatus and located downstream. The end of the sheet block divided by the upward swing of the sheet block feeding device that is swingable about the carry-out end , and the block of the block that was located below. above but in a state of tilted substantially horizontally to be positioned downstream or discharge to the next step, or scooping sheet block It said seat block feeding device as its end located a seat block downwardly swung to a substantially vertical state is disposed on the upstream side Fuku倒, while being inverted to the next step A paper feeding method that repeats the discharge operation sequentially. When swinging upward in the seat block delivery device, the seat block support member is moved in the direction extending from the carry-in end of the seat block delivery device to the upstream side to support the upstream end of the seat block. The paper feeding method according to claim 1 . At the time of the operation of overturning and reversing the sheet block toward the downstream side, the downstream end surface of the sheet block is supported by the sheet block receiving member protruding on the conveying surface of the sheet block feeding device, and the seat block is overlaid paper according to claim 1 or 2 so as to invert. A sheet feeding device that feeds the stacked sheets obliquely upward in an upwardly inclined manner toward the downstream side;
A separator device that divides the stacked sheets fed by the sheet feeding device into blocks in a state in which several sheets are lifted from the leading sheet and the upper end portion is inclined upstream;
A sheet block feeding device supported so as to be swingable around a carry-out end portion on the downstream side so that a carry-in end portion facing the carry-out end of the sheet feed device moves up and down;
With
The sheet block divided into blocks by the separator device is lifted up by swinging upward until the sheet block feeding device is in a substantially horizontal state, and the upper end of the sheet block is tilted down so that the sheet block falls upstream. The delivery device is designed to feed downstream in a substantially horizontal state where the lower surface in a stacked state is supported, or the upper end of the delivery device is tilted down so that the upper end of the device falls further downstream by swinging in the same direction. A paper feeding device that is inverted and discharged downstream. The sheet block that swings with the sheet block feeding device and moves in a direction extending from the loading end of the sheet block feeding device to the upstream side when the sheet block feeding device swings upward is supported by the sheet block feeding device. The sheet feeding device according to claim 4, further comprising a sheet block support member that supports an upstream end of the sheet block. When the sheet block feeding device is swung to the side of the unloading end side of the sheet block feeding device together with the sheet block feeding device, and the seat block is tilted down and inverted toward the downstream side, on the conveying surface of the sheet block feeding device. 6. The sheet feeding device according to claim 4, further comprising a sheet block receiving member that is held in a protruding state and supports a downstream end surface of the sheet block in a substantially horizontal state.

Images